Xenomagia

(both singular and plural:) Wizardry in a style different from that of one's native culture or planet: therefore a highly relative and subjective term. Also: forms of magic which are not strictly wizardry, but have operative or structural aspects in common with it.

The study of xenomagia is xenomantics.

(See also: Comparative mantics: Wizardry, general theory and practice (Earth).)